Chhukung Ri itself is sometimes listed as a trekking peak, but apparently only in error. Kyazo Ri 6186 meters is the actually peak that was supposed to be listed, but apparently someone goofed on the website (or so we were told). According to the National Park, you don't need a special permit for Chhukung Ri, in fact from their office and for a few rupees you can purchase a certificate for climbing it.